A local CCC connection refers to the connection between two local CEs, that is, two CEs connected to the same PE. Similar to a Layer 2 switch, the PE can switch traffic without the need to set up a static LSP.
Networking Requirements
Figure 1 shows the CE is connected with the PE through a POS interface. The packets are encapsulated in PPP over the link layer.
A local connection is created between CE1 and CE2.
Configuration Roadmap
The configuration roadmap is as follows:
- Configure basic MPLS capability on PE and enable the MPLS L2VPN.
- Create a local connection from CE1 to CE2 on PE. (Because the local CCC connection is duplex, only one connection is needed.)
Data Preparation
To complete the configuration, you need the IP addresses of the interfaces.
Procedure
- Configure CE.# Configure CE1.
<HUAWEI> system-view[HUAWEI] sysname CE1[CE1] interface pos 1/0/0
[CE1-Pos1/0/0] ip address 100.1.1.1 24
[CE1-Pos1/0/0] undo shutdown
[CE1-Pos1/0/0] quit
# Configure CE2.<HUAWEI> system-view[HUAWEI] sysname CE2[CE2] interface pos 1/0/0
[CE2-Pos1/0/0] ip address 100.1.1.2 24
[CE2-Pos1/0/0] undo shutdown
[CE2-Pos1/0/0] quit
- Configure PE.# Configure LSR IDs and enable MPLS and MPLS L2VPN.
<HUAWEI> system-view[HUAWEI] sysname PE[PE] interface loopback 1
[PE-LoopBack1] ip address 1.1.1.9 32
[PE-LoopBack1] quit
[PE] mpls lsr-id 1.1.1.9
[PE] mpls
[PE-mpls] quit
[PE] mpls l2vpn
[PE-l2vpn] quit
[PE] interface pos 1/0/0
[PE-Pos1/0/0] undo shutdown
[PE-Pos1/0/0] quit
[PE] interface pos 2/0/0
[PE-Pos2/0/0] undo shutdown
[PE-Pos2/0/0] quit
# Create the local connection from CE1 to CE2.[PE] ccc ce1-ce2 interface pos 1/0/0 out-interface pos 2/0/0
- Verify the configuration.After the configuration is complete, run the display vll ccc command to view information about the CCC connection on the PE. You can find that a local CCC connection is set up on the PE, and the connection status is Up.
<PE> display vll ccc
total ccc vc : 1
local ccc vc : 1, 1 up
remote ccc vc : 0, 0 up
name: ce1-ce2, type: local, state: up,
intf1: Pos1/0/0 (up), intf2: Pos2/0/0 (up)
VC last up time : 2008-07-24 12:31:31 VC total up time: 0 days, 2 hours, 12 minutes, 51 seconds
Run the display l2vpn ccc-interface vc-type ccc command, and you can find that the VC type is CCC and the status is Up.<PE> display l2vpn ccc-interface vc-type all
Total ccc-interface of CCC : 2
up (2), down (0)
Interface Encap Type State VC Type
Pos1/0/0 ppp up ccc
Pos2/0/0 ppp up ccc
Run the display ip routing-table command on the CEs to check the interface routes learned on CE1 and CE2 from each other. CE1 and CE2 can successfully ping each other.Take CE1 as an example:<CE1> display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 5 Routes : 5
Destination/Mask Proto Pre Cost Flags NextHop Interface
100.1.1.0/24 Direct 0 0 D 100.1.1.1 Pos1/0/0
100.1.1.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
100.1.1.2/32 Direct 0 0 D 100.1.1.2 Pos1/0/0
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
<CE1> ping 100.1.1.2
PING 100.1.1.2: 56 data bytes, press CTRL_C to break
Reply from 100.1.1.2: bytes=56 Sequence=1 ttl=255 time=180 ms
Reply from 100.1.1.2: bytes=56 Sequence=2 ttl=255 time=60 ms
Reply from 100.1.1.2: bytes=56 Sequence=3 ttl=255 time=10 ms
Reply from 100.1.1.2: bytes=56 Sequence=4 ttl=255 time=70 ms
Reply from 100.1.1.2: bytes=56 Sequence=5 ttl=255 time=60 ms
--- 100.1.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 10/76/180 ms
Configuration Files
- Configuration file of CE1
#
sysname CE1
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 100.1.1.1 255.255.255.0
#
return
- Configuration file of the PE
#
sysname PE
#
mpls lsr-id 1.1.1.9
mpls
#
mpls l2vpn
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
#
interface Pos2/0/0
link-protocol ppp
undo shutdown
#
ccc ce1-ce2 interface Pos1/0/0 out-interface Pos2/0/0
#
interface LoopBack1
ip address 1.1.1.9 255.255.255.255
#
return
- Configuration file of CE2
#
sysname CE2
#
interface Pos1/0/0
link-protocol ppp
undo shutdown
ip address 100.1.1.2 255.255.255.0
#
return
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